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Finding the Fourth Proportional to 243,493.38, 336,014.42 and 136,064.30

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Solution

The fourth proportional to 243,493.38, 336,014.42 and 136,064.30 is: 187,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,493.38 : 336,014.42 = 136,064.30 : x
  2. Step 2: Convert to fraction form
    243,493.38/336,014.42 = 136,064.30/x
  3. Step 3: Cross multiply
    243,493.38x = 336,014.42 × 136,064.30
  4. Step 4: Simplify right side
    243,493.38x = 45,719,566,847.21
  5. Step 5: Solve for x
    x = 45,719,566,847.21/243,493.38
  6. Step 6: Final answer
    x = 187,765.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.